Eric Lee / smarc-fsl-linux-kernel

09 Nov, 2013

1 commit

07 Mar, 2010

2 commits

  • 8d9032bbe   elf coredump: add extended numbering support ... Browse Code »

    The current ELF dumper implementation can produce broken corefiles if
    program headers exceed 65535. This number is determined by the number of
    vmas which the process have. In particular, some extreme programs may use
    more than 65535 vmas. (If you google max_map_count, you can find some
    users facing this problem.) This kind of program never be able to generate
    correct coredumps.

    This patch implements ``extended numbering'' that uses sh_info field of
    the first section header instead of e_phnum field in order to represent
    upto 4294967295 vmas.

    This is supported by
    AMD64-ABI(http://www.x86-64.org/documentation.html) and
    Solaris(http://docs.sun.com/app/docs/doc/817-1984/).
    Of course, we are preparing patches for gdb and binutils.

    Signed-off-by: Daisuke HATAYAMA
    Cc: "Luck, Tony"
    Cc: Jeff Dike
    Cc: David Howells
    Cc: Greg Ungerer
    Cc: Roland McGrath
    Cc: Oleg Nesterov
    Cc: Ingo Molnar
    Cc: Alexander Viro
    Cc: Andi Kleen
    Cc: Alan Cox
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Daisuke HATAYAMA
     
  • 1fcccbac8   elf coredump: replace ELF_CORE_EXTRA_* macros by functions ... Browse Code »

    elf_core_dump() and elf_fdpic_core_dump() use #ifdef and the corresponding
    macro for hiding _multiline_ logics in functions. This patch removes
    #ifdef and replaces ELF_CORE_EXTRA_* by corresponding functions. For
    architectures not implemeonting ELF_CORE_EXTRA_*, we use weak functions in
    order to reduce a range of modification.

    This cleanup is for my next patches, but I think this cleanup itself is
    worth doing regardless of my firnal purpose.

    Signed-off-by: Daisuke HATAYAMA
    Cc: "Luck, Tony"
    Cc: Jeff Dike
    Cc: David Howells
    Cc: Greg Ungerer
    Cc: Roland McGrath
    Cc: Oleg Nesterov
    Cc: Ingo Molnar
    Cc: Alexander Viro
    Cc: Andi Kleen
    Cc: Alan Cox
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Daisuke HATAYAMA